:root{--bg-primary: linear-gradient(135deg, #6456f8, #4d9ff8);--text-main: #1f2937;--text-sub: #6b7280;--line: #e8ebf3;--black: #000000}*{box-sizing:border-box}body{margin:0;font-family:Manrope,sans-serif;color:var(--text-main);background:#f7f8fc}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.container{width:min(1200px,calc(100vw - 32px));margin:0 auto}.topbar{position:sticky;top:0;z-index:40;background:#ffffffeb;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}.topbar-inner{height:70px;display:flex;align-items:center;justify-content:space-between}.topbar-left{display:flex;align-items:center;gap:26px}.brand{font-size:28px;font-weight:800;letter-spacing:-.02em}.topnav{display:flex;gap:24px}.topnav a{font-weight:600}.auth-nav{display:flex;align-items:center;gap:12px}.auth-link{border:1px solid #d8dff3;border-radius:999px;background:#f7f9ff;color:#334ea5;padding:8px 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